Sensors and MCU not working - Galaxy S 4 Q&A, Help & Troubleshooting

Hi guys,
New owner of a S4 (GT-I9505 international) here with a problem. 2 days ago I noticed the screen wasn't rotating anymore. I used to rotate it portrait/landscape in applications like Camera or Internet (browser). The moment when it started to bother me was when looking at pictures with the phone in portrait and the image was landscape. Trying to rotate the phone didn't help. It was frozen. I called a buddy of mine who has some experience with Samsung devices and told me to verify the "Auto-Rotation" settings. It was all OK and enabled. Then he suggested turning the phone off and pulling out the battery and SIM card for 5 minutes and putting it all back. This didn't help either. Finally we got to the point where he told me to enter *#0*# in the Phone dialing application. As you might already know, this code gives you access to the "testing" hidden utility. There I tested all the options available. Everything was fine except for the Sensors and SensorHub Selftest.
In the Sensors section, all the tests failed, starting with the Accelerometer and ending with the Temperature. I uploaded screenshots taken during the tests. Please remember this started 2 days ago. Before this it was working perfectly. I don't recall making and major changes like updating any OS components or installing/running stress utilities related to sensors or device behavior. After doing some research online and reading about other people's similar problems I got to the point where I started to suspect a problem with the MCU (Micro Controller Unit). This component, according to Samsung, controls all the sensors and reads raw data from them without accessing the AP (Application Processor) this way extending the battery life. I believe the problem is here because it seems odd that none of the sensors are working all of a sudden. Can this component put the sensors into a sleep state and shut them down completely? Might this be the case here?
Below are the solutions I tried in order to revive the MCU and finally the sensors. I was all without success:
1) Turned off the phone and pulled the battery and SIM out. Put the back in after about 5 minutes. Result: sensors not working.
2) Reset to factory-settings from the settings option while the phone was in the working state (turned on). Result: sensors not working.
3) Rooted the phone, installed Clockwork Recovery, made a full system and applications backup and then installed custom ROM (two actually: PACMan, Google Play Edition (4.3)). I did this in order to exclude a problem related to drivers in the stock Samsung ROM, even if it was logical that Samsung being the owner and manufacturer of the device might have the "best" drivers and applications for inquiring the device components/sensors. I am aware this ended the warranty for me, but can I know it can easily be undone. Result: sensors not working.
4) Restored the original stock Samsung ROM. Result: sensors not working.
The utilities used for sensor testing were: Sensor Kinetics and Sensor Tester. Both can be found in the Play Store. On my wives phone, which is an old HTC Desire, both utilities picked up the available sensors and created graphs with the results. On my S4, I only got blank charts/graphics/results. In Sensor Kinetics for the Gyro for example, the message was "Waiting for the Gyroscope sensor...", just that, stuck.
If there are any other guys (or ladies!) out there who encountered this awful experience, please reach out and tell me if you found any practical solution, any other then just taking the device back to warranty. I'm open to any suggestions.
Best regards,
Andrei

Most likely a defective device ... can't you claim warranty and sent it back?

Sounds like hardware failure. This would be an issue for Samsung to solve.
Sent from my GT-I9505

AvelonTs said:
Most likely a defective device ... can't you claim warranty and sent it back?
Click to expand...
Click to collapse
Unfortunately I bought it second-hand and it does not have any warranty. I guess it's one of those moments I wish I had patience and gathered more cash to buy a new one from the store. Anyway, it's my bad luck. I had it working perfectly for weeks after buying it. I will use it like this for the time being..

i´ve got the exact same problem since yesterday...
i think i´ll take it to the shop for warranty

I've got the exact same issue. All sensors are having the same issue. None are working,
I found out because my camera app was not switching between landscape and portait any more. All pictures are saved as landscape...
Called Samsung Netherlands and they told me to wipe my phone (still latest original stock ROM) and try again.
Making a backup now using Kies... and will hard reset it afterward and check the sensors.again.
Probably not going to work... So I have to send it in...

darklord said:
I've got the exact same issue. All sensors are having the same issue. None are working,
I found out because my camera app was not switching between landscape and portait any more. All pictures are saved as landscape...
Called Samsung Netherlands and they told me to wipe my phone (still latest original stock ROM) and try again.
Making a backup now using Kies... and will hard reset it afterward and check the sensors.again.
Probably not going to work... So I have to send it in...
Click to expand...
Click to collapse
Hi there. I had same problem with sensors and MCU test failed, so i took phone to service. They said its hardware failure and replaced main board. Im picking phone tommorow and we will see...

Hi guys,
I took mine to a local phone service, not the official one, but they are an affiliate. They could not figure out exactly what the problem was so they replaced the logic/main board just for testing. It was all working fine. They called and informed me of the findings. Given the fact I don't have warranty for it, they suggested to send it to our main service in Bucharest where they have a more sophisticated testing equipment. It is possible to get a more precise answer regarding the defective component and maybe a less pricey solution to the problem. At this time, the only viable option is to get a new logic board in place, which is about to set me back 250 USD. I will get an answer from Samsung in Bucharest by tomorrow or the day after tomorrow.
I will get back to you with my final solution... hopefully something not so expensive
@darklord, @eweu: please post back you findings. Maybe in the future when some other unfortunate owner finds his way in here, will have a better understanding of whats on the plate for him.
Thanks,

Hard reset did not work as expected. Going to drop it off at a local official repair center....

S4 Sensors failing
I have the same problem with my S4 GT-I9505 device not auto-rotate, air gestures with gyroscope and accelerometer tests failing. S4 been back for 3 weeks to Samsung for repair came back and failed again after 1 week

KSal7506 said:
I have the same problem with my S4 GT-I9505 device not auto-rotate, air gestures with gyroscope and accelerometer tests failing. S4 been back for 3 weeks to Samsung for repair came back and failed again after 1 week
Click to expand...
Click to collapse
After installing some other ROM's and playing with different CSC's I have no sound and even no wireless and only Edge speeds on some ROM's. Restoring from backups, wireless came back and HSDPA+ also, but no luck with sound what so ever. Now, I have a tablet more or less. Thanks Samsung, this is great!

canaris1780 said:
After installing some other ROM's and playing with different CSC's I have no sound and even no wireless and only Edge speeds on some ROM's. Restoring from backups, wireless came back and HSDPA+ also, but no luck with sound what so ever. Now, I have a tablet more or less. Thanks Samsung, this is great!
Click to expand...
Click to collapse
Flashed I9505XXUDMH8_I9505OXXDMHA_BTU, sound and wlan working again. Previous problem with MCU/sensors still there.

i'm tired
canaris1780 said:
Flashed I9505XXUDMH8_I9505OXXDMHA_BTU, sound and wlan working again. Previous problem with MCU/sensors still there.
Click to expand...
Click to collapse
really i'm tired to solve this issue.
when i install new stock software the sensors work fine just a few minutes only yhen return to fail again.
i think its software issue and i'll solve it :good::good::good:

Sensors work again
:laugh: :victory:
Its work right now by itself
:crying:
after uploading the pictures its fail again

abdali_m2 said:
:laugh: :victory:
Its work right now by itself
:crying:
after uploading the pictures its fail again
Click to expand...
Click to collapse
I have the same thing here
all sensors are broken because of SensorHub BIN FW Version: AT0199999
then i try to update firmware with *#2663# it failed.

I have the same problem with my S4 GT-I9505.
Suddenly the device do not auto-rotate, and no air gestures with gyroscope and accelerometer are working.
The SensorHubTest end with FAIL.
Mid december I got one OTA firmware update and I didn't notice any problems first.
A few days after newyear I notice that my auto-brightness adjustment did not work properly.
Can't remember if auto-rotate didn't work when I notice the auto-brightness problem.
But finally I am here because I searched for sensors problems.
I did the SensorsHub Test with *#0*# and it ends with FAIL.
It seems that there is a problem with the 4.3x firmware.
With 4.2x all was fine.
Can anybody confirm my thoughts - that the firmware is broken and not the MCU itself?
What can we try? Downgrade? I read that one was lucky with "factory reset" but it didn't helped to revive the MCU of my device.
Thanks for reading
and answering
___
DK

Hi, i am a owner of a sch-i545 phone, and i have the same problem with the phone: no response of any sensor and a fail on test (or upgrade firmware) of the sensorhub.
At this time i was tried a lot of solutions: i was flashed stock firmware, custom firmware, and of course a factory reset (by the way, the first time with this problem was when i did it a single factory reset), its still broken the communication with the sensors.
I get back to life the phone when i upgrade the phone from 4.2 to 4.3 (sadly) and get lost when i update the binaries in super su (previously rooted with vroot).
Yesterday i give the phone to a technician (a close friend of another best friend), he will test the phone on this weekend to determine what is the problem to try to fix it.
When He fix this phone, i will post any news!
Regards.

remy1004 said:
At this time i was tried a lot of solutions: i was flashed stock firmware, custom firmware, and of course a factory reset (by the way, the first time with this problem was when i did it a single factory reset), its still broken the communication with the sensors.
I get back to life the phone when i upgrade the phone from 4.2 to 4.3 (sadly) and get lost when i update the binaries in super su (previously rooted with vroot).
Regards.
Click to expand...
Click to collapse
Thanks for your answer. I have hope that the next firmware will fix it.
What is strange that none of any reseller/privers know this problem. It seems that also Samsung has no knowledge about this special error.
Well if the next firmware didn't fix the problem, I can replace my model with a working one, that is what the guy at the phone shop offers to me.
___
DK

Same Problem Here
Hi guys, I'm new to this forum so be nice :angel:
I am having the same problem in that none of the sensors are working which indicates that it is a connection issue or the actual hub not working or the firmware and not the individual sensors themselves. I have thought about this and looked around and to me it seems like there are only 3 possibilities for the problem:
1) The SensorHub BIN FW Version is out of date and needs to be updated manually (not through *#2663 as it doesn't work)
2) There is a connection issue e.g. the cable from the sensorhub to the motherboard is loose or broken
3) The sensorhub is broken (not the sensors)
I will try to find the firmware files and see if I can do a manual update. If that fails I will open up the phone and see if the cable is connected/broken. If I still cannot solve the issue, I will have to take it to the shop and hope I can fix it off warranty (I bought it second hand)
Dan

shadowsoulxp said:
Hi guys, I'm new to this forum so be nice :angel:
I am having the same problem in that none of the sensors are working which indicates that it is a connection issue or the actual hub not working or the firmware and not the individual sensors themselves.
[...]
I will try to find the firmware files and see if I can do a manual update. If that fails I will open up the phone and see if the cable is connected/broken. If I still cannot solve the issue, I will have to take it to the shop and hope I can fix it off warranty (I bought it second hand)
Dan
Click to expand...
Click to collapse
Thanks Dan for your reply.
I assume that your S4 shows the same behaviour as my one and the phone is still working fine.
The sensorhubtest failed and your light sensor for automatic adjusting and the sensor for turning the display are not working.
What is really strange that I went to a vodafone shop in Hamburg and ask them if there is any other one having problems with the S4.
You know the answer? They where wondering and telling me that this is wierd and they heard the first time of such an issue from me.
I showed them the device and showed them how I test the sensors. *#0*# funny they didn't know this combo
I hope that you succeed and share your knowledge,
with best regards.
___
DK

Related

TOUCH HD keeps turning itself off

Hi Guys, i have a strange Problem since a couple of days.
The touch HD turns itself off after some minutes. I have to take out the battery and put it back in, otherwise it will not turn on...
i have:
- deactivated automatic shut down in power settings
- deactivated today timeout
- tried hardreset
- tried another rom (currently dutties final)
no success :-(
i have absolutlely no clue what could cause this and how i can fix it...
help is highly appreciated.
hello there , actually maby its a virus or there is problem in SPL
Try to install again the SPL modified and tell me
best regards
ms4cah
unlikely it has anything to do with SPL. it was fine for months, i had not flashed or installed anything.
it seams dead now by the way. i cannot turn it on again.
i also tried a new battery. it doesnt even charge, no light at the power button. nothing.
Surrido said:
unlikely it has anything to do with SPL. it was fine for months, i had not flashed or installed anything.
it seams dead now by the way. i cannot turn it on again.
i also tried a new battery. it doesnt even charge, no light at the power button. nothing.
Click to expand...
Click to collapse
Sounds like a warranty claim
I am getting the same problem!! is there anything i can do to fix this? anyone figured out the reason?
I had this sort of problem.
The HD would hang, then switch off, then to get back on I had to remove the battery for a while. Sometimes it worked after a minute, other times I had to leave the battery disconnected for longer.
So I performed a hard reset and it switched itself off during boot (after successfully resetting).
Battery out for a while.
H/R once more. Again crashed during boot but not at the same point as previous.
Tried a different battery with a full charge - same result.
Tried to re-flash a "very popular" custom ROM with USPL. Got to 1% and error. This was because the HD had crashed..
Tried to flash the official HTC ROM and it got to 15% and error. HD crash.
So I have contacted HTC and they are sending a courier to collect it so they can take a look with a view to repairing it.
The last ROM I successfully loaded about 2 weeks prior to the start of my problems was a custom win mo 6.5 rom. As I couldn’t get it to a stable state - I couldn’t flash the official HTC ROM.
I’ve convinced myself it’s a hardware fault rather than any software damage..
Although I fear I’ll be in for some bad news.
mine too
Hi,
I have the same problem.
Mine was doing hard reset and after a day or two the same problem.
Now I cannot turn it on.
I will send it to htc...
Crossing my fingers.
I had the same problem with mine...
While turned on, it automaticly tryed to turn of, as if something was pressing the on/off buttom. Everytime that message for turning it off poped up and I just couldn't control the on/off button anymore.
I tryed everything and nothing worked. It really seemed a hardware and warranty claim issue. However, since I bought it abroad and it does not have warranty here in Brazil, I just decided to sell it (obviously warning the buyer about the issue) and to buy another one (which is working as a charm).
It is a hardware issue, for sure...
So my HD has been away at HTC for nearly a week, and im currently tracking its return journey, due to land back here at some point this morning.
I have had no contact from HTC so its going to be a suprise as to whether anything has been repaired.
My hope was they couldn't turn it on at all - thus replacing the bits n bobs inside, replacing the main board containing my 6.5 ROM.
So for now im hoping "no news will be good news", but I will update this when I have it back.
... I've the same problem...
Hi, I've the same problem. Do you have any solutions?
Nasher79 said:
So my HD has been away at HTC for nearly a week, and im currently tracking its return journey, due to land back here at some point this morning.
I have had no contact from HTC so its going to be a suprise as to whether anything has been repaired.
My hope was they couldn't turn it on at all - thus replacing the bits n bobs inside, replacing the main board containing my 6.5 ROM.
So for now im hoping "no news will be good news", but I will update this when I have it back.
Click to expand...
Click to collapse
Just recieved delivery. The service report states:
1. Diagnosis
2. Replace Main Board
3. Function Test
Result
Confirms it was a H/W fault and my "flashing" did not effect the warranty status. That may have been because they couldnt get far enough to confirm so.
Mega75 said:
Hi, I've the same problem. Do you have any solutions?
Click to expand...
Click to collapse
Other than a Warranty repair, im afraid not. Try your best to get it back to HTC official software, then report it as no power / cant boot.
Nasher79 said:
Just recieved delivery. The service report states:
1. Diagnosis
2. Replace Main Board
3. Function Test
Result
Confirms it was a H/W fault and my "flashing" did not effect the warranty status. That may have been because they couldnt get far enough to confirm so.
Click to expand...
Click to collapse
Good to know, confirmed h/w issue
i simply deactivated automatic shut down in power settings as mentioned in the first post and unistalled a couple of new programs i had recently installed!!
Not quite sure which of the above worked.. but atleast for now it seems to be working fine!! the screen has not turned off by itself and i have not had to remove battery etc to get it to work again!
I'm not quite sure if the problem is properly fixed but it has been a few days since anything occurred!! so fingers crossed!!
mine was doing this last tuesday, each time i went into my pocket for it, it was turned off, then i hard to do the reset pin or remove the battery, it has been ok since, i just thought, maybe it was me, pushing it in my jeans i might be turning it off.
also using duttys popular 6.5 latest rom, i dont think its fair to blame his rom, as mines ok now, maybe i should reflash it again?? im still waiting for a new version to be released.... JESUS!!! just looked it up to r12, im on r9 .
oh no... no it not..... says to go here, and it will be released here and not on dutty throy???
http://htcpedia.com/forum/forumdisplay.php?f=79
iamdarren said:
mine was doing this last tuesday, each time i went into my pocket for it, it was turned off, then i hard to do the reset pin or remove the battery, it has been ok since, i just thought, maybe it was me, pushing it in my jeans i might be turning it off.
also using duttys popular 6.5 latest rom, i dont think its fair to blame his rom, as mines ok now, maybe i should reflash it again?? im still waiting for a new version to be released.... JESUS!!! just looked it up to r12, im on r9 .
oh no... no it not..... says to go here, and it will be released here and not on dutty throy???
http://htcpedia.com/forum/forumdisplay.php?f=79
Click to expand...
Click to collapse
FYI, Throy is releasing roms exclusively to HTCPedia now, so no future roms will be released on either XDA or www.duttythroy.com
wow!!! i never knew!!!! thats crazy as his own site duttythroy wont be used.
im getting it now, but only 11 when it says 12 is out, either way, i will still flash i love the roms, i will be sure to be on all the site, incase theres another change of heart??
anyway guys i will report if i noticed the shutdown thing happening again with the version. 4mins till downloaded.....
I think theres a couple of different issues here. My own problem was due to faulty parts in the hardware itself. Absolutley nothing to do with any ROM, only reason I mentioned them was because of the invalid warranty possibility.
If your problem was ROM related, Im sure in the relevant ROM thread, there would be many people (everyone) with the same issue. Thats not to say that its not some sort of conflicting software you may have installed after the ROM flash.
Some simple troubleshooting steps:
1. Hard reset - If it still has a problem...
2. Flash Official HTC ROM - If still a problem...
Phone HTC.
All the best, hope you manage to get something to work for you. I know how lost I felt without mine!
Nasher79 said:
I think theres a couple of different issues here. My own problem was due to faulty parts in the hardware itself. Absolutley nothing to do with any ROM, only reason I mentioned them was because of the invalid warranty possibility.
If your problem was ROM related, Im sure in the relevant ROM thread, there would be many people (everyone) with the same issue. Thats not to say that its not some sort of conflicting software you may have installed after the ROM flash.
Some simple troubleshooting steps:
1. Hard reset - If it still has a problem...
2. Flash Official HTC ROM - If still a problem...
Phone HTC.
All the best, hope you manage to get something to work for you. I know how lost I felt without mine!
Click to expand...
Click to collapse
Your exactly right. Some people experience similar symptoms which are rom related others have same problem which is hardware related. One can only be fixed by HTC as motherboard problem, other can be rectified by different means without having to send device back for repairs
Hi again,
Today I have received an sms from HTC service informing me that my HD has a circuit problem and they will fix it without any charge.
I have to wait.

[Q] Galaxy S4 Sensor issues

Hi All,
I've been experiencing some sensor issues lately on my Samsung Galaxy S4 I9505. The issue is basically, that they don't work. After running tests and ensuring that it's not me being stupid, I sent it back for repair under warranty into Phones4u, (DO NOT ever do that if you take my advice) saying it's a hardware issue. That was in august (precisely on the 30st).
The first time the phone came back to me in september (25th) saying it had been repaired. And guess what, it had not. Same issues. (I'll skip the part where I complained over phone and emailed them and basically they ignored / didn't get back to me, or refused to give me a replacement phone saying I'm not with the ripoff insurance company they had offered) Cheers for that!
So I sent it back for a second round with an A4 sheet describing the issue in details.
After waiting almost a month - again - I got my phone back (yesterday.. Oct 19th) with the engineer's comments: "Couldn't find the problem."
Great!
BUT! Surprisingly, all sensors worked! wow!
But my joy didn't last long, as after a few hours the test Failed again. I restarted the phone and it turned out that restarting the phone helps SOMETIMES temporarily, and that's only confusing because I would've thought that I'm facing a hardware issue. But if they SOMETIMES work it must be a software issue.
So I went ahead and downloaded the latest OFFICIAL firmware (XXEUEMI8) with 4.3 android. With this I'm not voiding the warranty and keep the binary counter on 0 just in case it has to go back again. (Oh yes, the phone hasn't been rooted. )
But no, didn't work. Still the same issues.
In the video here you see my latest factory reset and sensor tests.
Any ideas? Suggestions? Maybe someone with similar issues?

Nexus 4 - No Service

Hi all,
I got a Nexus 4 from Ebay. Cellphone is in flawless condition, it probably has less than a couple of months of use. Unfortunately, I am not able to pick up a signal in any way. I just get a constant "No Service" message, and occasionally it will jump to "Emergency Calls Only".
Testing menu says Signal Strenght is 0 dBm 99 asu, no neighboring cells and location is unknown.
I've tried changing the prefered network to WCDMA only (as suggested in other threads), also tried with the other available settings with no luck. Tried playing around with the Change Bands setting as well but it makes no difference
Tried with a few different sim cards as well but that didn't work either, just got signal momentarily and but it would go on and off.
Cellphone came with 4.2.2 and I upgraded to 4.3 as requested by the system. Same issue.
Tried basebands 48 and 84.
Tried CM 10.2.
Replaced SIM card with a brand new one.
Cellphone doesn't appear to be blacklisted either.
Not sure what to do next. I'll try to get in contact with the seller but I don't expect much from him or eBay. Maybe I can sell off the device very cheap for spare parts, or send it for repair somewhere? Leave it as a dev device (which would virtually indistinguishable from a N5 that I plan to get anyway), Anyone else has any other suggestions or ideas?
Try to install a factory stock image: http://forum.xda-developers.com/showthread.php?t=2010312
If you pay with PayPal you get buyer protection so you can try to get your money back.
Could be a hardware or antenna issue.
To me it seems like its been blocked for certain reasons. Either it was reported stolen or the person who sold it to you didn't pay his/her bill for which the carrier blocked it. In that case you can't do much about it.
I would contact the seller right away. If you get no response contact paypal and eBay.
Sent from my Nexus 4 using Tapatalk 4
This problem is occurring for a lot of Nexus 4 users, including me. Its some sort of pandemic. Here’s what you can do to atleast restore service to your phone : flash the factory 4.3 image to your phone, again. However, try flashing a radio that is 54 or older with it. Make sure you wipe the cache and flash all the partitions, system, boot, bootloader and the old radio. This will bring back service to your phone (did for me), however you will be left with no in call audio and your phone wont connect to the internet through the mobile network, only wifi. After doing this, you will see your baseband and IMEI in the phone.
You can use this as some sort of “test” to verify if your phone really isn’t stolen. What is the ultimate resolution to this problem ? I really don’t know yet. I’ve been breaking my head over this for the past 4 days now. Maybe I’m going to try out the unbrick method mentioned over here to see if that helps.
As an update I am getting intermittent signal in some areas, but it's really spotty and only lasts a little while : (
I'll be giving different basebands a try tomorrow but I don't think it'll help much. I'll also try the full factory flash posted above.
Same problem here, had the phone for about 2-3 months, bought it off Kijiji, I tried flashing 4.2.2, went back to 4.3, flashed every baseband and still no success. The SIM works perfectly in another N4, tried a few other sim in mine and still the same results. Any other ways somebody got this fixed ?
QuebecFanat1c said:
Same problem here, had the phone for about 2-3 months, bought it off Kijiji, I tried flashing 4.2.2, went back to 4.3, flashed every baseband and still no success. The SIM works perfectly in another N4, tried a few other sim in mine and still the same results. Any other ways somebody got this fixed ?
Click to expand...
Click to collapse
I'm talking to the seller, see if the phone is still under warranty. My other options would be to change the antenna myself (see if it works), or resell it at loss for spare parts, or wait to see what eBay says.
Just to give you guys some hope, that this is not just a problem faced by second hand phones - My phone is bought directly from the Play store - I contacted Google service a few days back and they asked me to return the phone for a replacement. Only problem is I have to ship this back to the US (where I purchased from), since they dont provide replacement service outside the country of purchase. I'm in India now.
I've tried absolutely everything myself. Flashed many many radios, 4.3, 4.2.2, I'm only able to get it to the point where there is network coverage, I can make and receive calls but there is no in call audio, nor is there any mobile internet connectivity (Only through wifi).
Something tells me this is a problem with the latest OTA update that caused this issue - I was completely stock and everything was working properly, when this problem appeared one fine day - It started with me not able to connect to the mobile internet network for a few days, and then one fine morning, BAM. No service. It was only after this that I started flashing and re-installing stuff on my phone, desperately trying everything to get the phone back to normal again.
I think the last OTA update somehow "bricked" the radio (dont know if something like this is possible, just a noob guess). My only hope is the 4.4 update has some fix for this, else I'm going to try the unbrick method mentioned on these forums to see if that works. Only then will I take the pain to send this back to the US.
What's the unbrick method you are planning to follow?
I was considering using the unbrick method listed here : http://forum.xda-developers.com/showthread.php?t=2347060
Although I'm not completely sure it will work. Do you or anyone else have any suggestions for this ? I'm hoping 4.4 gets released ASAP, I'll download and root that as quickly as I can, hopefully Google has some resolution to this stupid problem
i have exactly the same problem
i have exactly the same problem. i bought my phone at US from Google play.
the phone worked fine for two month and then i got - No Service, and its swipe in a sec to emergency call only.
i try to replaced some sim cards, and factory reset with no success.
i also read a bug report that opened in Google : 58317
they told that there is a problem with the radio interface and radio driver at the 4.3 update, and they will fix it in 4.4 kitkat version.
i hope that 4.4 will fix this terrible problem, if not the phone is totally a door blocker..
Did anyone ever find a solution for this issue?
My friend has this problem with his Nexus 4.
I've searched A LOT and to this day (half a year later) haven't been able to find someone who reports this problem was solved.
I've also tried every suggestion I could find: flashed every stock image available, tried every combination of stock/custom ROM/recovery/radio, even tried the unbrick method mentioned above.
Nothing helps. I always get the same symptoms:
- Radios 54 and below - no in call audio.
- Radios 83 and above - Baseband unknown, IMEI / IMEI SV unknown, no cellular reception.
Also, RMA is not an option because the people at the store (a) don't know how to fix it and (b) claim the warranty doesn't cover this issue so they won't replace the device.
Any suggestions? I'm willing to try anything...
Maybe its a simple hardware failure like a loosely connected antenna? It doesn't really seem to be connected to any specific software setup
Something that happens to me rarely: when I'm in an area with very low/no reception sometimes the phone won't reconnect itself again and just stay on no reception until I reboot. Only happens like one or two times a month though.
Sent from my Nexus 4 using xda app-developers app
Thanks, but I really don't think it could be an antenna issue.
I can see how a malfunctioning antenna could cause cellular reception problems, but it shouldn't affect IMEI or Baseband version readings. Those things have nothing to do with the antenna.
Also, the fact that the symptoms change with different radio firmwares says there's a big chance this is a software issue after all.
I just can't figure out what the cause is and how to eliminate it.
Flash any full factory image. If the problem persists after you can be pretty sure it's hardware. No signal for most of the time and occasionally picking it up could be something as simple as the antenna being unplugged, which can sometimes happen after a drop, or a forgetful repair.
NoobNexus said:
I was considering using the unbrick method listed here : http://forum.xda-developers.com/showthread.php?t=2347060
Although I'm not completely sure it will work. Do you or anyone else have any suggestions for this ? I'm hoping 4.4 gets released ASAP, I'll download and root that as quickly as I can, hopefully Google has some resolution to this stupid problem
Click to expand...
Click to collapse
Guys... mine is signalless too... any progress on this? :crying:
michalhainc said:
Guys... mine is signalless too... any progress on this? :crying:
Click to expand...
Click to collapse
Could be a broken or badly connected antenna. They are very fragile. Have a look at how to replace the antenna maybe?
Sent from my Nexus 4 using Tapatalk
sp99 said:
Could be a broken or badly connected antenna. They are very fragile. Have a look at how to replace the antenna maybe?
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
yup I am waiting for the ordered tools to break into it and look around...
michalhainc said:
yup I am waiting for the ordered tools to break into it and look around...
Click to expand...
Click to collapse
I've opened up lots of my old phones (not my nexus 4 yet) and its normally easy to find and change as it's separate from the motherboard and looks basically like a piece of plastic!
Sent from my Nexus 4 using Tapatalk
I have the same problem no connection but the phone recognize the sim and the number of the phone. I've tryed to return to stock using a factory firmware but I'm not able to fix the problem... (this morning is working fine and my phone never fell down or something like that)
If I open btw the case and try to remove and reinsert correctly the antenna the phone will recognize the signal?

Can't take pictures: If I do, the phone reboots

Hello everyone,
I've been experience a very ugly issue with my S7 Edge.
SCENARIO 1: When the sensor works (meaning when I can see in the screen what the camera "sees") and I try to take a picture, the camera throws an error message saying "Unknown error occurred", and then the phone reboots:
SCENARIO 2: In other occasions, the camera starts with a complete black screen and immediately throws this error:
One of the two scenarios above always happen, which basically means I'm never able to take a picture.
What I've tried so far:
1) Upgrade from Marshmallow to Nougat.
2) Reset settings.
3) Full phone reset (cache + data).
4) Phone reset from recovery mode (cache + data).
5) The issue are present in safe mode as well.
6) I tried downloading other camera apps. Errors again.
7) Tried changing the storage location from SD to Device. Didn't work.
8) Video recording works!!!!!
Is it a hardware problem in your opinion? How can a software issue still stay after a hard reset? I'm not sure because in SCENARIO 1 I can see that the sensor works, plus video recording works!
Any help is greatly appreciated!
FIXED by using ODIN and flashing Nougat with the CSC file
Maybe try flashing full stock rom through odin or smart switch since there might be a problem to the system files itself.
In my opinion though, this seem like a hardware problem.
Sent from my SM-G935F using Tapatalk
The problem re-appeared.
I also think it's a hardware problem. I'm just gonna send it back to Samsung.
IssamGS2 said:
The problem re-appeared.
I also think it's a hardware problem. I'm just gonna send it back to Samsung.
Click to expand...
Click to collapse
I've been having the exact same issue for months now. On 6.0, 6.0.1 and 7.0 as well.
Please let me know what Samsung tells you. The problem for me is that I bought the phone from amazon (8 months ago) and live in Argentina.
One thing I can't understand is that camera worked fine for the first couple of months. Also find really strange the fact that I'm able to take pictures with flash ON. Have you tried it?
ignaciogh said:
I've been having the exact same issue for months now. On 6.0, 6.0.1 and 7.0 as well.
Please let me know what Samsung tells you. The problem for me is that I bought the phone from amazon (8 months ago) and live in Argentina.
One thing I can't understand is that camera worked fine for the first couple of months. Also find really strange the fact that I'm able to take pictures with flash ON. Have you tried it?
Click to expand...
Click to collapse
I tried some days ago with the flash ON, and it didn't work (if I remember correctly). I didn't waste too much time, and as soon as I found out about the issue I sent it to Samsung for repair.
I have it back since today afternoon, and what I read from the attached papers is that there was a malfunctioning piece which they replaced. The list of operations Samsung did is:
- Boardswaping
- Software update (I doubt about this one as my phone was already updated)
I really think you should contact Samsung directly, and not Amazon. Here in Europe they have a good repair program: after max. 3 business days you get your phone back (and they will do the pick-up, and delivery). Maybe it's the same in Argentina.
Good luck!
IssamGS2 said:
I tried some days ago with the flash ON, and it didn't work (if I remember correctly). I didn't waste too much time, and as soon as I found out about the issue I sent it to Samsung for repair.
I have it back since today afternoon, and what I read from the attached papers is that there was a malfunctioning piece which they replaced. The list of operations Samsung did is:
- Boardswaping
- Software update (I doubt about this one as my phone was already updated)
I really think you should contact Samsung directly, and not Amazon. Here in Europe they have a good repair program: after max. 3 business days you get your phone back (and they will do the pick-up, and delivery). Maybe it's the same in Argentina.
Good luck!
Click to expand...
Click to collapse
Thanks for the info!
Do you know which board did they swap? The main board? :S
Argentina doens't handle international devices. I'd have to take the phone to de US .
I'll try to get it repaired here anyways.
Thanks again por the info.
ignaciogh said:
Thanks for the info!
Do you know which board did they swap? The main board? :S
Argentina doens't handle international devices. I'd have to take the phone to de US .
I'll try to get it repaired here anyways.
Thanks again por the info.
Click to expand...
Click to collapse
I'm sorry, I don't have that info. They did not specify.

note 4 died. good battery.rooted.service did nothing since it was rooted

so, this phone died for me in 2017, and have been in a drawer since then. then i thought why not ask. so long story short if i remember correctly: bought it new. i rooted it since all the cool kids do that. then i did some update i think. and then in the winter of 2017 in beginning it just started behaving weirdly for me and then it turned off and all kinds of shenanigans. cant restart using different methods, sometimes it blinks, sometimes that bios menu comes up. blabla. so i tried to send it to the local repairshop that the seller used. but since i had it rooted they refused to fix it. so now i have a phone that costed 600 euro + 70 euro in service cost and it doesnt work. and then its been in a drawer since then.
i took it out, had it and the battery in a freezer for a while like some has said on internet didnt work.
anyway. does anyone here know any tips? if i want to flash the room can that be possible? or is this a lost cause? was this a common problem with note 4? i loved it and it crushed my heart when it stopped working. i still have a few months of pics etc on it from back then that ive never been able to get out. i attached it to the computer now and the computer makes a sound but nothing more.
any tips?
darknessviking said:
so, this phone died for me in 2017, and have been in a drawer since then. then i thought why not ask. so long story short if i remember correctly: bought it new. i rooted it since all the cool kids do that. then i did some update i think. and then in the winter of 2017 in beginning it just started behaving weirdly for me and then it turned off and all kinds of shenanigans. cant restart using different methods, sometimes it blinks, sometimes that bios menu comes up. blabla. so i tried to send it to the local repairshop that the seller used. but since i had it rooted they refused to fix it. so now i have a phone that costed 600 euro + 70 euro in service cost and it doesnt work. and then its been in a drawer since then.
i took it out, had it and the battery in a freezer for a while like some has said on internet didnt work.
anyway. does anyone here know any tips? if i want to flash the room can that be possible? or is this a lost cause? was this a common problem with note 4? i loved it and it crushed my heart when it stopped working. i still have a few months of pics etc on it from back then that ive never been able to get out. i attached it to the computer now and the computer makes a sound but nothing more.
any tips?
Click to expand...
Click to collapse
Sounds to me like either dead emmc or misconnection.
If it's just? misconnection there are tips (increasing the pressure by cardboard).
Can you access download mode?
Sometimes it shows there "dead emmc".
I somewhere read about a testing app.
Gotta search.
Where in Europe are you?
In the German Android-hilfe forum there is a member who fixes that.
Either exchanging the emmc or resoldering it.
If the chip is dead probably the data are lost.
afaik flashing the stock ROM deletes data.
It's a known problem, yes.
bmwdroid said:
Sounds to me like either dead emmc or misconnection.
If it's just? misconnection there are tips (increasing the pressure by cardboard).
Can you access download mode?
Sometimes it shows there "dead emmc".
I somewhere read about a testing app.
Gotta search.
Where in Europe are you?
In the German Android-hilfe forum there is a member who fixes that.
Either exchanging the emmc or resoldering it.
If the chip is dead probably the data are lost.
afaik flashing the stock ROM deletes data.
It's a known problem, yes.
Click to expand...
Click to collapse
Excellent feedback and assessment @bmwdroid . Thank you for sharing.
I only wish to add that there is a way to flash Samsung firmware while keeping user data. Of course, this method wouldn't be effective when it comes to emmc hardware failure so Im posting it for general information purposes only.
If you have downloaded the firmware for your Samsung Galaxy device you’ll find 2 CSC binaries with *.tar.md5*extension (namely CSC and Home_CSC ) inside along with BL, AP, and CP.*CSC*and*HOME_CSC*are necessary for different purposes, and you have to choose one or the other depending on your goal.
CSC –*If you flash the CSC file, it’ll perform a*factory reset*of your Galaxy device and wipe all data while installing a new firmware to bring your device to the same*state as it was when you purchased it. Go with CSC if you want a*clean installation.
HOME_CSC*–* On the other hand, if you want to*keep your Samsung phone’s data and settings*even flashing the stock firmware, you can select the HOME_CSC file.

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